<!DOCTYPE html>
<html lang="zh-cn">
  <head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <title></title>
    <link rel="stylesheet" href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css">
  </head>
  <body>
    <nav class="navbar navbar-inverse">
      <div class="container">
        <div class="navbar-header">
          <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1" aria-expanded="false">
		        <span class="sr-only">Toggle navigation</span>
		        <span class="icon-bar"></span>
		        <span class="icon-bar"></span>
		        <span class="icon-bar"></span>
      		</button>
          <a class="navbar-brand" href="#">Project Name</a>
        </div>

        <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
          <ul class="nav navbar-nav">
            <li class="active">
              <a href="#">Home</a>
            </li>
            <li>
              <a href="#">About</a>
            </li>
            <li>
              <a href="#">Contact</a>
            </li>
          </ul>
        </div>
      </div>
    </nav>

    <div class="container">
      <div class="row">
        <div class="col-xs-12 col-sm-9">
          <p class="pull-right visible-xs">
            <button type="button" class="btn btn-xs btn-primary">Toggle</button>
          </p>
          <div class="jumbotron">
            <h1>Hello, world!</h1>
            <p>This is a simple hero unit, a simple jumbotron-style component for calling extra attention to featured content or information</p>
          </div>
          <div class="row">
            <div class="col-6 col-sm-6 col-lg-4">
              <h2>headline</h2>
              <p>If the elements are used to act as buttons – triggering in-page functionality, rather than navigating to another document or section within the current page – they should also be given an appropriate role="button".</p>
            </div>
            <div class="col-6 col-sm-6 col-lg-4">
              <h2>headline</h2>
              <p>If the elements are used to act as buttons – triggering in-page functionality, rather than navigating to another document or section within the current page – they should also be given an appropriate role="button".</p>
            </div>
            <div class="col-6 col-sm-6 col-lg-4">
              <h2>headline</h2>
              <p>If the elements are used to act as buttons – triggering in-page functionality, rather than navigating to another document or section within the current page – they should also be given an appropriate role="button".</p>
            </div>
            <div class="col-6 col-sm-6 col-lg-4">
              <h2>headline</h2>
              <p>If the elements are used to act as buttons – triggering in-page functionality, rather than navigating to another document or section within the current page – they should also be given an appropriate role="button".</p>
            </div>
            <div class="col-6 col-sm-6 col-lg-4">
              <h2>headline</h2>
              <p>If the elements are used to act as buttons – triggering in-page functionality, rather than navigating to another document or section within the current page – they should also be given an appropriate role="button".</p>
            </div>
            <div class="col-6 col-sm-6 col-lg-4">
              <h2>headline</h2>
              <p>If the elements are used to act as buttons – triggering in-page functionality, rather than navigating to another document or section within the current page – they should also be given an appropriate role="button".</p>
            </div>
          </div>
        </div>
        <div class="col-xs-6 col-sm-3" id="sidebar">
          <div class="list-group">
            <a href="#" class="list-group-item active">Link</a>
            <a href="#" class="list-group-item">Link</a>
            <a href="#" class="list-group-item">Link</a>
            <a href="#" class="list-group-item">Link</a>
            <a href="#" class="list-group-item">Link</a>
            <a href="#" class="list-group-item">Link</a>
            <a href="#" class="list-group-item">Link</a>
            <a href="#" class="list-group-item">Link</a>
            <a href="#" class="list-group-item">Link</a>
            <a href="#" class="list-group-item">Link</a>
          </div>
        </div>
      </div>
    </div>

    <script src="https://cdn.bootcss.com/jquery/1.12.4/jquery.min.js"></script>
    <script src="https://cdn.bootcss.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
  </body>
</html>